//加
export const floatAdd = (arg1: number, arg2: number) => {
  var r1, r2, m
  try {
    r1 = arg1.toString().split('.')[1].length
  } catch (e) {
    r1 = 0
  }
  try {
    r2 = arg2.toString().split('.')[1].length
  } catch (e) {
    r2 = 0
  }
  m = Math.pow(10, Math.max(r1, r2))
  return (arg1 * m + arg2 * m) / m
}

//减
export const floatSub = (arg1: number, arg2: number) => {
  var r1, r2, m, n
  try {
    r1 = arg1.toString().split('.')[1].length
  } catch (e) {
    r1 = 0
  }
  try {
    r2 = arg2.toString().split('.')[1].length
  } catch (e) {
    r2 = 0
  }
  m = Math.pow(10, Math.max(r1, r2))
  //动态控制精度长度
  n = r1 >= r2 ? r1 : r2
  return ((arg1 * m - arg2 * m) / m).toFixed(n)
}

//乘
export const floatMul = (arg1: number, arg2: number) => {
  var m = 0,
    s1 = arg1.toString(),
    s2 = arg2.toString()
  let s1Length = s1.split('.')
  let s2Length = s2.split('.')
  try {
    m += s1Length.length > 1 ? s1Length[1].length : 0
  } catch (e) {
    console.error(e)
  }
  try {
    m += s2Length.length > 1 ? s1Length[1].length : 0
  } catch (e) {
    console.error(e)
  }
  return (
    (Number(s1.replace('.', '')) * Number(s2.replace('.', ''))) /
    Math.pow(10, m)
  )
}

//除
export const floatDiv = (arg1: number, arg2: number) => {
  var t1 = 0,
    t2 = 0,
    r1,
    r2
  let arg1Length = arg1.toString().split('.')
  let arg2Length = arg2.toString().split('.')
  try {
    t1 = arg1Length.length > 1 ? arg1Length[1].length : 0
  } catch (e) {
    console.error(e)
  }
  try {
    t2 = arg2Length.length > 1 ? arg2Length[1].length : 0
  } catch (e) {
    console.error(e)
  }

  r1 = Number(arg1.toString().replace('.', ''))

  r2 = Number(arg2.toString().replace('.', ''))
  return (r1 / r2) * Math.pow(10, t2 - t1)
}
